WO2015008840A1

WO2015008840A1 - Wire harness

Info

Publication number: WO2015008840A1
Application number: PCT/JP2014/069099
Authority: WO
Inventors: 達也雄鹿; 英臣足立
Original assignee: 矢崎総業株式会社
Priority date: 2013-07-19
Filing date: 2014-07-17
Publication date: 2015-01-22
Also published as: US9643545B2; JP6156636B2; JP2015022894A; US20160129861A1

Abstract

　An electrically conductive channel (1) is provided with a conductor (2) and an insulator (3). The electrically conductive channel (1) has a portion that is a route-restricting section (A) where routing must be restricted, and portions that are different from the portion that is the route-restricting section (A); i.e., portions that are separate sections (B). The route-restricting section (A) is set longitudinally, and the separate sections (B) are set so as to be of a prescribed length from the two ends of the route-restricting section (A). The portion that is the route-restricting section (A) is of shape-retaining rigidity, and the portions that are the separate sections (B) have flexibility and are less rigid than the route-regulating section (A).

Description

Wire harness

The present invention relates to a wire harness including one or a plurality of conductive paths.

As a conventional wire harness, for example, one that electrically connects high-voltage devices mounted on a hybrid vehicle or an electric vehicle is known.

The wire harness disclosed in Patent Document 1 described below includes a plurality of conductive paths, a resin corrugated tube that collectively accommodates the plurality of conductive paths, and a resin protector. The corrugated tube is formed in a flexible bellows tube shape, and a plurality of corrugated tubes are provided in the longitudinal direction of the wire harness. A protector is provided in the part which requires route control. Moreover, a protector is provided in the position which connects adjacent corrugated tubes. The corrugated tube and the protector are used as an exterior member.

Japanese Unexamined Patent Publication No. 2010-51042

In the above prior art, a retrofitted exterior member is required to regulate the route. Therefore, there are problems that the number of parts increases and the cost increases, and that the number of manufacturing steps of the wire harness increases.

In order to solve these problems, a structure that eliminates the need for a retrofitted exterior member is required. However, if it is simply unnecessary, it will not be possible to regulate the route.

The present invention has been made in view of the above-described circumstances, and it is possible to regulate a route even if a retrofitted exterior member is not required, and cost and man-hours can be reduced by eliminating the need for a retrofitted exterior member. It is an object to provide a wire harness that can be achieved.

The above object of the present invention can be achieved by the following constitution.
(1) In a wire harness including a conductive path,
The conductive path has a conductor and a coating,
The conductor connects a first conductor disposed in a route restriction section that requires route restriction and a second conductor disposed in another section different from the route restriction section,
The coating covers the conductor in a state where the first conductor and the second conductor are connected.

According to the configuration of (1) above, the configuration includes a conductive path, and the conductive path connects a plurality of types of conductors and covers the connected conductors with a coating. Therefore, it is different from a structure in which, for example, a plurality of types of known electric wires are connected to form a single wire. Further, according to the present invention, the conductor constituting the conductive path is arranged in accordance with the first conductor arranged in accordance with the route restriction section requiring the route restriction and in another section different from the route restriction section. The second conductor is formed by connecting at least two kinds of conductors. Therefore, it is different from the known conductor structure of electric wires. With the structure as described above, it is possible to regulate the path even if a retrofitted exterior member is unnecessary. In the present invention, it is effective to connect a highly rigid conductor (first conductor) and a less rigid conductor (second conductor).

(2) In the wire harness described in (1) above, the conductor is formed by connecting the first conductor and the second conductor with substantially the same diameter.

According to the configuration of (2) above, the first conductor and the second conductor are connected without generating a convex portion on the outer surface (in other words, the first conductor and the second conductor are connected with substantially the same diameter), and this connection It has a structure in which it is covered with a covering in a state. In connecting the first conductor and the second conductor, if the convex portion is not formed on the outer surface, the influence on the covering molding and the influence on the covering outer face can be reduced.

(3) In the wire harness described in (2) above, the first conductor and the second conductor are subjected to forming processing so as to be connected with the substantially same diameter.

According to the configuration of the above (3), even if the first conductor and the second conductor have different conductor sizes, the first conductor and the second conductor are made to have substantially the same diameter by forming. It becomes possible to connect with.

(4) In the wire harness described in any one of (1) to (3) above, a portion corresponding to the route regulation section of the wire harness has rigidity.

According to the configuration of (4) above, it has a structure in which the path is regulated with rigidity. It is the rigidity of the conductor that contributes to the path regulation.

According to the present invention described in the above (1), as can be seen from the structure of the conductive path, there is an effect that the path can be regulated even if a retrofitted exterior member is unnecessary. Further, according to the present invention, there is an effect that cost and man-hours can be reduced by eliminating the need for a retrofitted exterior member.

According to the present invention described in (2) above, in addition to the effect of (1), the following effect is also achieved. That is, there is an effect that the moldability of the coating can be improved or the outer surface state of the coating can be improved.

According to the present invention described in (3) above, in addition to the effect of (2), the following effect is also achieved. That is, even if the conductor sizes have different diameters, there is an effect that they can be connected with substantially the same diameter.

According to the present invention described in the above (4), in addition to the above effects (1) to (3), the following effects are also obtained. That is, there is an effect that a retrofitted exterior member can be dispensed with at least in a portion having rigidity.

Fig.1 (a) is a perspective view of the conductive path which comprises a wire harness, FIG.1 (b) is the elements on larger scale. 2A and 2B are diagrams relating to the conductive path, FIG. 2A is a diagram showing a configuration of a conductor, FIG. 2B is a diagram showing another connection structure, and FIG. 2C is a diagram of FIG. 2A. The figure which shows the state which coat | covered the insulator with the conductor, FIG.2 (d) is sectional drawing of a conductive path. FIGS. 3A and 3B are diagrams of another example of a conductive path, FIG. 3A is a diagram showing a single-core configuration, and FIG. 3B is a diagram showing a two-core configuration. FIG. 4 is a schematic view showing a wiring state of the wire harness according to the present invention.

The wire harness is configured to include one or a plurality of conductive paths. The conductive path has a conductor and a coating, and the conductor is formed by connecting a plurality of kinds of conductors so that the rigidity varies depending on the section. A coating is provided for such conductors.

Hereinafter, the wire harness according to the present embodiment will be described with reference to the drawings. Fig.1 (a) is a perspective view of the conductive path which comprises the wire harness of this embodiment, FIG.1 (b) is the elements on larger scale. Moreover, FIG. 2 is a figure which concerns on a conductive path, FIG. 3 is a figure of the conductive path used as another example, and FIG. 4 is a schematic diagram which shows the wiring state of the wire harness which concerns on this embodiment.

In FIG. 1, a conductive path 1 constituting a wire harness is a high-voltage conductive path, and includes a conductor 2 and an insulator 3. As will be understood from the description below, the conductive path 1 has a structure corresponding to the section.

The conductive path 1 has a portion of a route restriction section A that requires route restriction, and a section different from the portion of the route restriction section A, that is, a portion of another section B. The number of sections is not limited to two or three, but may be four or more sections. Here, the route restriction section A is set to be long, and another section B is set to have a predetermined length from both ends of the route restriction section A. The portion of the route restriction section A has a rigidity capable of retaining the shape, and the portion of another section B has a lower rigidity and flexibility than the route restriction section A. FIG. 1B is a partially enlarged view in the vicinity of the boundary between the route restriction section A and another section B.

2A, the conductor 2 is made of metal and has conductivity. In addition, the conductor 2 has a portion of the route restriction section “a” and a portion of another section “b”. The route restriction section “a” and the separate section “b” correspond to the route restriction section A and the separate section B in FIG. 1, respectively, and are set to be at the same positions as the route restriction section A and the separate section B. . The conductor 2 has a first conductor 4 as a part of the path regulation section “a” and two second conductors 5 as a part of another section “b”. The conductor 2 is formed by connecting the second conductor 5 to both ends of the first conductor 4 to form one conductor. The conductor 2 is initially formed in a straight state.

The first conductor 4 and the second conductor 5 are made of copper or copper alloy, or aluminum or aluminum alloy. The first conductor 4 and the second conductor 5 are of a conductor structure formed by twisting strands, or a rod-shaped conductor structure having a rectangular or round cross section (for example, a conductor structure having a flat single core or a round single core). Any of those may be used.

The first conductor 4 and the second conductor 5 may have a plate-like conductor structure such as a known bus bar. Moreover, in the case of a stranded wire, you may twist together centering | focusing on a core material (wire material used as a rigid body).

The first conductor 4 and the second conductor 5 can be freely combined, such as a conductor structure in which both are single cores, a conductor structure in which both are stranded wires, or a conductor structure in which one is a single core and the other is a stranded wire. Shall. In Fig.2 (a), the 1st conductor 4 shall be an aluminum round single core, and the 2nd conductor 5 of this both ends shall be a copper strand. Such first conductor 4 and second conductor 5 are electrically connected to each other. The method of connecting the first conductor 4 and the second conductor 5 is not particularly limited, such as ultrasonic welding or heat welding.

The first conductor 4 and the second conductor 5 are either connected by abutting the end faces orthogonal to the conductor axis, or connected after processing the ends into a substantially crank shape as shown in FIG. It may be. Further, the first conductor 4 and the second conductor 5 may be any conductor size having the same diameter or different diameters.

2 (a) to 2 (c) show the joining portion 6. When the first conductor 4 and the second conductor 5 have different conductor sizes, it is effective to form the joining portion 6 by performing a forming process in order to obtain the same diameter.

The first conductor 4 corresponds to the route restriction section A in FIG. Therefore, it is formed in a long shape and has a rigidity capable of retaining the shape. On the other hand, since the 2nd conductor 5 respond | corresponds to the different area B of FIG. 1, it is formed so that rigidity may be low and it may have flexibility. The rigidity capable of maintaining the shape of the first conductor 4 means a rigidity that allows the bent shape to be maintained when the conductive path 1 manufactured in a straight state is bent by a bender machine or the like. This rigidity is effective in route routing.

The second conductor 5 corresponds to another section B. Therefore, it is disposed on the end side of the conductive path 1. It is preferable that the 2nd conductor 5 is arrange | positioned in the location which wants to give flexibility on a wiring path | route. The arrangement of the second conductor 5 is not limited to the end side of the conductive path 1.

2 (c) and 2 (d), when the insulator 3 is coated on the conductor 2 formed by connecting the first conductor 4 and the second conductor 5 by, for example, extrusion molding, the first conductor 4 and the second conductor 4 are formed. The outer periphery of the two conductors 5 is covered with a predetermined thickness. When covered with the insulator 3, the manufacture of the conductive path 1 is completed.

Suppose that the insulator 3 is a known resin material having insulating properties. It is also effective to use a functional resin material with improved wear resistance (wear resistance is an example).

Here, a modified example of the conductive path will be described with reference to FIG. FIG. 3A shows a shielded electric wire (conductive path) 11. The shielded electric wire 11 is provided outside the insulator 3, the conductor 2 connecting the first conductor 4 and the second conductor 5 (see FIG. 2), the insulator 3 for covering the conductor 2, and the like. A shield member 12 and a sheath 13 provided outside the shield member 12 are provided. That is, the conductive path 1, the shield member 12, and the sheath 13 are provided. The shielded electric wire 11 is a high-voltage conductive path having a shielding function. The shield member 12 is a known braid or metal foil, and has conductivity.

Next, FIG. 3B shows a cabtire cable (conductive path) 21. The cabtyre cable 21 includes two conductive paths 1, a shield member 22 provided on the outside in a state where the two conductive paths 1 are arranged, and a sheath 23 provided on the outside of the shield member 22. . The cabtire cable 21 is a high-voltage conductive path having a shielding function. The shield member 22 is a known braid or metal foil, similar to the shield member 12, and has electrical conductivity. Note that three or more conductive paths 1 may be used.

In connection with the above modification, the wire harness 31 is manufactured using the conductive path 1, the shielded electric wire 11, or the cabtyre cable 21. As shown in FIG. 4, the wire harness 31 is routed at a predetermined position of, for example, a hybrid vehicle (which may be an electric vehicle or a general vehicle).

FIG. 4 shows the hybrid vehicle 51. The hybrid vehicle 51 is a vehicle that is driven by mixing two powers of the engine 52 and the motor unit 53, and the motor unit 53 is supplied with electric power from the battery 55 (battery pack) via the inverter unit 54. . The engine 52, the motor unit 53, and the inverter unit 54 are mounted in an engine room 56 near the front wheels in this embodiment. Further, the battery 55 is mounted on the rear part 57 of the vehicle near the rear wheel, but may be mounted in the vehicle room existing behind the engine room 56.

The motor unit 53 and the inverter unit 54 are connected by a high-voltage motor cable 58. The battery 55 and the inverter unit 54 are connected by a high-voltage wire harness 31. In the wire harness 31, the intermediate portion 59 is routed substantially parallel along the vehicle underfloor 60. The intermediate portion 59 is routed in a shape-maintained state. The vehicle underfloor 60 is a known body and a so-called panel member, and a through hole (reference numeral omitted) is formed at a predetermined position. The wire harness 31 is inserted through the through hole.

The wire harness 31 and the battery 55 are connected via a junction block 61 provided in the battery 55. The rear end 62 of the wire harness 31 is electrically connected to the junction block 61 by a known method. Further, the front end 63 side of the wire harness 31 is electrically connected to the inverter unit 54 by a known method. The front end 63 side and the rear end 62 side of the wire harness 31 have flexibility, and electrical connection is easy.

As described above with reference to FIGS. 1 to 4, the conductive path 1 according to the embodiment of the present invention prepares the conductor 2 that connects the first conductor 4 and the second conductor 5 in advance. The conductor 2 is coated with an insulator 3. That is, it is not an electric wire prepared by preparing plural types of electric wires and connecting the prepared plural types of electric wires one by one.

When the conductive path 1 according to the embodiment of the present invention is compared with the electric wires connected one by one as described above, the conductive path 1 is not expensive. That is, even when there are different required specifications in the routing route, it is possible to make an appropriate configuration according to the required specifications, and as a result, the cost is not increased. In addition, when a plurality of types of electric wires are connected one by one, an insulation treatment or a waterproof treatment is required, but the conductive path 1 according to the present invention connects the first conductor 4 and the second conductor 5. Since the conductor 2 is coated with the insulator 3, the above treatment is unnecessary, and as a result, the cost is not increased.

On the other hand, according to the wire harness 31 according to the embodiment of the present invention, as can be seen from the structure of the conductive path 1, it is possible to restrict the path even if a retrofitted exterior member is unnecessary. Further, by eliminating the need for a retrofitted exterior member, cost and man-hours can be reduced.

Here, the features of the embodiment of the wire harness according to the present invention described above are briefly summarized and listed in the following [1] to [4], respectively.

[1] In the wire harness (31) including the conductive path (1),
The conductive path (1) has a conductor (2) and a coating (insulator 3),
The conductor (2) includes a first conductor (4) disposed in a route restriction section requiring route restriction, and a second conductor (5) disposed in another section different from the route restriction section, Connecting
The coating (insulator 3) covers the conductor (2) in a state where the first conductor (4) and the second conductor (5) are connected to each other. A wire harness (31).
[2] In the wire harness (31) according to [1] above,
The said conductor (2) connects said 1st conductor (4) and said 2nd conductor (5) by substantially the same diameter. Wire harness (31).
[3] In the wire harness (31) according to [2] above,
A wire harness (31) formed by forming the first conductor (4) and the second conductor (5) so as to be connected with the substantially same diameter.
[4] In the wire harness (31) according to any one of [1] to [3],
A portion corresponding to the path regulation section of the wire harness (31) has rigidity.

Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.

This application is based on a Japanese patent application filed on July 19, 2013 (Japanese Patent Application No. 2013-150013), the contents of which are incorporated herein by reference.

According to the present invention, it is possible to provide a wire harness that can be route-regulated without the need for a retrofitted exterior member, and that can reduce costs and man-hours by eliminating the need for a retrofit exterior member. There is an effect that can be done. The present invention having this effect is useful for a wire harness including one or a plurality of conductive paths.

1 Conductor 2 Conductor 3 Insulator (Coating)
4 First conductor 5 Second conductor 6 Junction 11 Shielded wire (conducting path)
12 Shield member 13 Sheath 21 Cabtire cable (conductive path)
22 Shield member 23 Sheath 31 Wire harness A, a Route restriction section B, b Separate section

Claims

In a wire harness including a conductive path,
The conductive path has a conductor and a coating,
The conductor connects a first conductor disposed in a route restriction section that requires route restriction and a second conductor disposed in another section different from the route restriction section,
The covering covers the conductor in a state where the first conductor and the second conductor are connected to each other.
The wire harness according to claim 1,
The said conductor connects said 1st conductor and said 2nd conductor with the substantially same diameter, The wire harness.
The wire harness according to claim 2,
The first conductor and the second conductor are formed with a forming process to connect the first conductor and the second conductor with substantially the same diameter.
The wire harness according to any one of claims 1 to 3,
A portion corresponding to the path regulation section of the wire harness has rigidity.